not believe (one's) eyes

not believe (one's) eyes

To be shocked or surprised by what one is seeing or has seen. Oh, I can't believe my eyes! Are you really throwing the ball in the house right now? Did you really buy me a new car? I don't believe my eyes!
See also: believe, eye, not

not believe one's eyes

Fig. not to believe what one is seeing; to be shocked or dumbfounded at what one is seeing. I walked into the room and I couldn't believe my eyes. All the furniture had been stolen! When Jimmy opened his birthday present, he could hardly believe his eyes. Just what he wanted!
See also: believe, eye, not

not beˌlieve your ˈeyes/ˈears

(usually used with can’t or couldn’t) think that something you see/hear is very surprising: I couldn’t believe my ears when I heard my name mentioned on the radio.
See also: believe, ear, eye, not